Refinar búsqueda
Resultados 111-120 de 271
Characterization of proteolytic enzymes expressed in the midgut of Haemaphysalis longicornis
1999
Mulenga, A. (Hokkaido Univ., Sapporo (Japan)) | Sugimoto, C. | Onuma, M.
The proteolytic activities present in midguts of both fed and unfed Haemaphysalis longicornis were assessed by using the gelatin-substrate gel electrophoresis and inhibitor sensitivity analyses. Three predominant (116, 48 and 40 kDa) and two weak (55 and 60 kDa) proteinase bands were commonly expressed in both unfed and fed ticks, while a weak 80 kDa band was only present in fed ticks. Consistent with observations on other tick species, proteolytic activity against the gelatin substrate was observed only under acidic conditions. Inhibition studies against the gelatin substrate using a panel of inhibitors showed that the predominant proteolytic enzymes of 40 and 48 kDa molecular mass are cysteine proteinases. These results are discussed in the context of host vaccination as an alternative tick control method to the current use of chemical acaricides
Mostrar más [+] Menos [-]Haemoproteus Columbae in domestic pigeons in Sebele, Gaborone, Botswana
1999
Mushi, E.Z. (Botswana College of Agriculture, Gaborone (Botswana). Animal Science and Production) | Binta, M.G. | Chabo, R.G. | Mathaio, M. | Ndebele, R.T.
The epidemiology of rabies in Zimbabwe. 1. Rabies in dogs (Canis familiaris)
1999
Bingham, J. | Foggin, C.M. (Central Veterinary Laboratory, Harare (Zimbabwe)) | Wandeler, A.I. | Hill, F.W.G.
Parasites of domestic and wild animals in South Africa. XXXVI. Arthropod parasites of yellow mongooses, Cynictis penicillata (G. Cuvier, 1829)
1999
Horak, I.G. | Chaparro, F. (Pretoria Univ., Onderstepoort (South Africa). Dept. of Veterinary Tropical Diseases) | Beaucournu, J.-C. | Louw, J.P.
The use of chicken IgY in a double antibody sandwich ELISA for detecting African horsesickness virus
1999
Du Plessis, D.H. | Van Wyngaardt, W. | Romito, M. (Agricultural Research Council, Onderstepoort (South Africa). Onderstepoort Veterinary Inst.) | Du Plessis, M. | Maree, S.
Effect of an aqueous extract of Azadirachta indica on the immune response in mice
1999
Njiro, S.M. (Nairobi Univ. (Kenya). Dept. of Veterinary Pathology and Microbiology) | Kofi-Tsekpo, M.W.
Gastro-intestinal parasites of cattle in the communal grazing system of Botshabelo in the Free State [South Africa]
1999
Dreyer, K. | Fourie, L.J. | Kok, D.J. (Orange Free State Univ., Bloemfontein (South Africa). Dept. of Zoology and Entomology)
Ecological studies of helminth parasites of the largemouth bass, Micropterus salmoides, from Lake Naivasha and the Oloidien bay, Kenya
1999
Aloo, P.A. (Aquatic Research Centre, Nairobi (Kenya))
Assessment of cattle owners' perceptions and expectations, and identification of constraints on production in a peri-urban, resource-poor environment
1999
Dreyer, K. | Fourie, L.J. | Kok, D.J. (Orange Free State Univ., Bloemfontein (South Africa). Dept. of Zoology and Entomology)
The parasitological and serological prevalence of tsetse-transmitted bovine trypanosomosis in the Eastern Caprivi (Caprivi District, Namibia)
1999
Van den Bossche, P. | Mudenge, D. (Regional Tsetse and Trypanosomosis Control Programme, Harare (Zimbabwe)) | Mubanga, J. | Norval, A.
